Machine for inserting screw-threaded fastenings.



0. ASHTON. R INSBRTING SCREW THBEADED FASTENINGS. APPLICATION FILED AUG.19,.1898.

MACHINE IO Patented May 4, 1909.

4 SHEETS-SHEET I.

O. ASHTON. MACHINE POR INSERTING SCREW THREADED FASTENINGS. APPLIUATION FILED AUG.19,1898.

920,241 Patented May 4, 1909. K 4 SHEETS-SHEET 2,

f rut Noam: rnrfu co., wAsmNaroN. u. c.

O. ASHTON. MAGHINB PoR INSERTING SCREW THBBADBD FASTBNINGS.

Patented May 4, 1909.

APPLICATION FILED AUG.19,1898.

4 SHEETS-SHEET 3.

Vm: unnms Parsns co., wAsNlnaron. 'L c 0. ASHTON. MACHINE ron INSEB'HNG sonEw THBBADED FASTBNINGS.

APYLIOATION FILED AUG.19,1B98.

920,241 Patented May 4, 1909.

4 SHEETS-SHEET 4.

#2 Wmfv l plum ll `llllll ll fr ff@ wm STATES PAENT TO UNITED SHOE MACHINERY COMPANY MACHINE FOR INSERTING SCREW- Specification of Letters Patent.

Application filed August 19, 1898. Serial No. 688,992.

To all whom 'it may concern.'

Be it known that I, OnnnLL Asi-iron, of Lawrence, county of Essex, State of li'lassachusetts, have invented an Improvement in Machines for Inserting Screw-lhreaded Fastenings, of which the following description, in connection with the accompanying' drawings, is a specification, like chai'- acters on the drawings representing like parts.

This invention has for its object to improve and simplify machines of the class represented in United States Letters Patent No. 490,621, dated Jan. 24:, 1893.

The patent referred to shows a. wire feeding` mechanism composed of a constantly rotating' wire-carrying spindle provided with grippers which grasp the wire to feed and insert the same into the stock sustained by a horn, said `rrippers beine, operated through a sleeve actuated by a feed lever having' a roller or other stud which is acted upon by a face-cani cai'ried by a continuouslyoperating` shaft, and when the feed of the wire is to be stopped, the feed lever having' the roller or other stud is locked in such position that the cam in its rotation while meeting' the i'ollei' will not actuate the lever for a distance sutiicient to effect the feeding' of the wire, and consequently the feed of the wire is temporarily suspended without, however, stopping` the rotation of the spindle carrying' said grippei's. The lever and roller of the wire feeding' mechanism are under the control of a knee lever which is moved in one direction by the operator when itis desired to ari'est the feeding movement of the wire, and in an opposite direction when it is desired that the wire feeding mechanism shall act to feed the wire, the wire during` the feeding' action being thrust into the stock and thereafter cut off for the production of a fastening. In the machine of said patent the length of wire fed through-the throat by the wire feeding mechanism varies according;` to the thickness of the stock then on the horn and to receive a fastening', and the extent to which the wire is fed for the formation of a first-fastening after starting' the wire feeding mechanism is determined, while the machine is running'.r by the roller of said'lever meeting' said face cam, the point .of contact varying, it will be understood, according to the thickness of the MESNE ASSIGNMENTS,

, A CORPORATlOhv OF NEW JERSEY.

THRE ADED FAS'IENIN GS.

Patented May 4, 1909.

l stock on the stock support. rThe shaft cai'- ryingl said face cani ously at very high sp hereinafter designat and rotated continueed forms what will be ed as a continuously moving;` actuator for the wire feeding` mechlVhen the operator desires to start the feeding' of the wire he moves the knee lever the feeding' of the wire for cient to produce sntiicicnt to penetra the horn, and conseq ing is almost invaria to unite the work why the fastening properly. first formed after stai'tof the wire feeding' ay start and the roller said cam, but owing lever is released at the opei'ator, it happens that the n practice hardly evei' proper point on said or actuator to insure a distance suilia first fastening of a length 'te the stock then on nent-ly the first fastenbly too short and fails The reason ing the wire feeding' mechanism is usually too short is that the determine accurately opei'atoi' is unable to the instant at which he must move the knee lever that the i'oller may meet the moving cam at inclined face of the rapidly linst the proper pointto cause the wire feeding, mechanism to grasp 'and feed the wire f Hrst fastening or the formation of a of the right length to fully penetrate the particular thickness of stock then on the lioi'ii.

have aimed herein so to improve inachines of the class referred to that the opei'- atoi, preparatory to sta rtingl into operation the wire feeding mechanism and other parts, may move a manually controlled device and prepare a controlling lever to be thereafter moved automatically of the feedl lever to timio'usly moving act ing' mechanism for and cause the i'ollei' contact with said connator to start the feedfeeding the wire, the

point of contact of said i'ollei' with said actuator varying with the thickness of the stock, the contact being, liowevei', always at exactly the proper point with relation to the length of the inclined face of said actuator to insure the movement of the wire feeding mechanism, a

t the first fecdin 0' o Jeration of the wii'e feeding` mechanism, for

such a distance as to insure the production of a fastening of exactly the proper length to penetrate the stock then on the horn.

The first feeding movement having been effected, and a fastening of the propeil length having been inserted in the stock, the second and other succeeding feeding movements of the wire will result in the production of fastenings which shall all be of the proper length to penetrate the stock substantially to the tip the horn.

Through the manually controlled device and the automatically controlled starting device l am enabled to obviate the formation of any short fastenings, and fastening of the proper length may be insured for each wire feeding stroke even though the wire feeding mechanism were stopped after inserting each fastening.

ln the machine described in said patent t" e operation of the cutters of the wire cutting mechanism for severing the wire close to the stock after the same has been inserted to form a fastening, does not stop when the operation of the wire feeding mechanism is suspended, and they hit together and become ch lled, and also in said patented machine as made and put on the market, the horn is depressed automatically preparatory to each feeding movement of the stock over the horn, but when the wire feeding mechanism is stopped the horn is left in contact with the underside of and clamping the stock so that before removing the stock from the horn the operator has to put his foot upon a treadle and further depress the horn sufficiently to enable the stock to be removed.

1 have herein ma de provision whereby the operation of the wire cutting mechanism may be entirely suspended whenever the action of the wire feeding mechanism is suspended, and whereby when the operation of the wire feeding mechanism is suspended the horn will be lowered and locked in a depressed position with the tip of the horn occupying a position in which the stock is unolamped ready to be removed from horn and in which other stock may be lied to said horn.

To effect my invent-ion in one form, the best form now known to me, l have in the machine herein illustrated and described provided at one side of the column mechanical devices which 1 designate as a lock that may be set through a manually controlled device, and be thereafter retained and moved automatically in defined time and order to cause the wire feeding mechanism to be started and moved unerringly at its first str he for the production of a fastening long enough to penetrate tie stock to the tip of the horn.

Figure 1, in left hand elevation, shows a sufficient portion of a machine for inserting wire, which may be screw-threaded, into boots or shoes or other material resting upon the horn, with my improvements added, to enable my invention to be underthe l a l l l l l l stood; Figs. 1a and 1b are respectively a sectional. detail and lower end views of the wirecarrying spindle, gripper carrier, sleev'-, and grippers; Fig. 2 shows the lower end of the machine shown in Fig. 1, a small portion of the column being broken out to save space on the drawing; Fig. 3 is an enlarged detail view, partly in section, of the lock and some of the parts coperating therewith, to be described; FiO. el is a similar View to Fig. 3, but with the lever 021 shown in a different position; Fio. 5 is a detail looking at the left of Fig. o; Fig. 6 is an enlarged section looking to the left of the section line a', Fig. l; Fig. 7 is a detail of the wedge for moving the stop coperating with the measuring device of the feed lever; 8 shows in two views the movable heel and part of its sustaining lever instrumental in actuating the wire-cutting mechanism; Fig. S1, a detail showing the stop for suspending the operation of the feed lever and partof its carrying rod; 9 is an enlarged detail showing the lock and connected parts applied to the column looking at the same in the direction of Yhe arrow 2, l, Fig. 10 is a detail at the right-hand side of the head, chiefly to show the feed lever DM, its attached measuring device, the cam or actuator fo moving said lever, and the stop, the latter holding the feed lever and its roller in their inoperative relation with said cam; Fig. 11 is a detail showing in face view the cutting means used to cut the wire into fastening lengths, and Fig. 12, a detail showing the locking bar detached.

The column A, supporting the head A", the rotating wire-carrying spindle A10, the

sleeve F embraced by the yoke D10, the feed lever D11, pivoted at D15, said lever having a roller or other stud D1, shown by dotted lines, Fig. l, which is acted upon by the face cam D11, .fast on the shaft "B14, the spring actuated toothed box 10e, the rod 100 actuated by said box to move said roller toward said cam, the worm toothed gear d10 on said shaft, it being engaged by a worm on said rotating spindle, the latter deriving its motion from a belt extending over a pulley A, Ifast thereon; the cam B1S fast on said shaft B14, and having two toes C and C1 to actuate at proper times-the wire-cutting mechanism to be described; the horn depressing lever B9 pivoted at B15, and slotted for the reception of. a stud; the cutter actuating lever C, the spring 112 surrounding the rod 1123, and normally keeping said lever elevated; the toothed gear (Z9, see Fig. 1, fast to the cam wheel B13 and engaging a second like toothed wheel (ZS on the shaft 6W; the lever c instrumental in actuating the feeding device for feeding the shoe over the horn; the link C connected with the lever C, which is moved when the wire-cutting inechanisni is to be actuated, said link operating the cutter-carriers 121 and 123, the measuring device or leg G2 having the nut or projection 40; the grippers pivotcd upon a gripper carrier (Z, the rollers b3, carried by the sleeve F; and the horn B, its attached horn shaft B, the arni G attached to said horn and carrying a measuring rod Gr, see Fig. 6, it cooperating with the measuring leg G2; the fast and loose pulleys A2, A, shown in Fig. 2, the sliding' cani A@ cooperating with the wedge AG" and controlled by the lever A2 to stop and start the spindle, the shaft B14, and its actuating cams, the horn extension B2 having the lifting spring B4, the lever B3 to which said extension is connected, and the nose or foot plate f, are and may be all substantially as represented in said Patent No. 490,621, it being understood that the cutting mechanism is actuated by teeth at the front end of the hollow shaft- Cs, as fully represented .in said patent, so that said parts need not be herein further described.

The invention to be herein described is not limited to the exact shape shown for the measuring leg G2' or its nut or projection, so long as it moves with the feed lever DM.

The rod d operatively connected with the horn and having at its upper end a bar (Z5, shown as toothed, and the engaging device Z shown as a pawl of a carrier (Z2 for engaging' said bar and lifting the saine to depress the horn, and which when lowered may slide freely over said rack or bar to adapt it to depress the horn uniformly from a variable base line, namely, the underside of the stock, preparatory to feeding the stock over the horn, are and may be all as usual and as eonnnon to United States Letters Patent No. 265,927, dated September 2G, 1882. vll/Then a fastening is being insert-ed, the tip of the horn is held by spring' B4 against the stock to clamp it against the nose or foot plate j'.

As I have illustrated iny invention, the carrier Z2 has connected with it, by a screw B25, see Figs. 3 and t, a stirrup B2", having at its upper end a sleeve B2, through which is extended loosely a continuously inoving rod B22, united in an adjustable manner by a suitable bolt B21 to the horn depressing lever B2, see Fig. 6, the bolt entering' a slot in said lever, said lever being` operated continuously by or tln'ough a cani groove 121, cut at the inner face of the continuously moving actuator' B13 for the horn-depressing and the wire-cutting mechanisms, said cani groove having', as represented, two throw points 120. The rod B22 for moving the carrier cl2 is loosely connected therewith, whereas the rod in Patent No. 265,227, Xed to said carrier. To effect this loose connection the rod B22 is provided with a collar B30, see Figs. l and 9, and is surrounded below said collar with a spring B31, the lower end of which rests upon the sleeve B21", the extreme end of said rod extended loosely through said sleeve having' applied to it a nut. or shoulder B32. As the rod B22 is depressed, the spring' B21 acting on the carrier depresses the latter in a yielding manner, causing the pawl al to slide or click over the teeth of the rack or bar (Z2 when the stock is of increasing thickness to thereby effect the rengagernent of said pawl or engaging` device with said rack or bar at a suitable point thereon to again depress the horn at the next rise oit' the carrier for a defined distance from the under side of the stock. The rod B22, collar B3, spring Bi, and nut. B22 constitute a yielding actuator for the carrier. The nut lift-s the carrier positively to depress the horn that the stoel; niay be fed, and also that the stock may be removed, yet when the horn .is locked in its lowered position for the reinoval of the stock, as will be described, the spring Bl perinits the rod, which is n'iovcd continuously, to descend in the sleeve B22 without movingl the carrier.

rThe carrier has connected to it near its upper end by pins (ZW a locking-bar clainp or extension d composed preferably of steel. This extension is .further secured to the carrier by a screw (ZV, the latter entering a hole in a linger d1 shaped at its lower end, see Figs. 3 and 4f, to forni a cani 20, the screw CZ fastening' the linger to the carrier. The rack or bar Z5 and the carrier Z2 are movable in a guideway of the colunin fl, and between said colunin and a capplate D2 Vforming part of a guide fraine D2" secured to the column by bolts D21 eX- tended through holes in said cap-plate, see Figs. 3, lland 5, for the reception of a locking device GO having at one side a roller or other stud (il that is struck at each de-l scent of the carrier (Z2 by the cani face Q0 of the finger d2" inovable therewith, a spring G2 bearing on one end of said locking device, 3 and l, acting normally to press the roller stud Gl toward said finger. The lock frame has a hub 5G, a guiding boss 5t), and sustains a screw stud 22. The screw stud C22 receives and forms the fulcruin for a controlling lever @2l having in one of its arms a stud v2 that enters loosely a slot, see Fig. l2, in the side of a locking bar d2", that sustained at its lower side b i and niay be slid on the upper edge or shoulder Il of the plate Dm. The other arni of the controlling lever has a passageway inade therethrough, the lower part of which is shown as having a coucaved seat 4G. The opposite end of said passageway is screw threaded and receives a turret 4t2 containing a spiral spring elle'. The passageway receives through it, before the turret is put in place, the lower end of a rod t3 shown having a shape at loiver side. rThis rod has applied to ita hloolr 48 held in adjusted position thereon by a set screiv Li9, and said rod is then extended through the guiding boss 50 Where it is surrounded by a spring 5l, the lower end et' which is sustained by a collar fastened to said rod by a setscrew, as shown in l.

rEhe lower end et the rod 3, see Fig. 2, is connected with a treadle el pivoted at (WX The rod constitutes one suitable torni ot What l herein designate inanually controlled nieans which may be inoved by the operator prior to starting the v-"ire tecding niechanisin to prepare the controlling lever for thereafter starting automatically the wire feeding inechanisin `inst the proper tiine to insure such ay length ot' stroke tor the teeding` lever or the Wire feeding inechanisin as Will cause the production ot the tirsttastening to be inade, ot a length to fully pene trate the stock then on the horn.

The split end ot the controlli y lever has clainped therein av stud of that enters loosely asplit huh Q2 of an erin 22K that is confined by ay clainp screw 23 to a rod 2l having at its upper end a Wedge Q5, se Figs. l and 7, said rod being lguided at its lovver end in the hub 5G. rihis .v dge is shown as split at its upper end to inclose slidable stop rod Sil, see 7 and 8a, carrying at its end a stop that takes the place ot the pivoted block 27 having a hole, shown in said Patent itil-90,621, as coperating with the measuring leg. vThe rod 3l.- has fastened to one ot its ends by a set screw 39 a` split hub 0X Vhaving an inclined or beveled tace nextthe inclined side ot the Wedge Q5, said rod being surrounded at the opposite side oi" said Wedge by an anti-triction or steel Washer and between said stop and the part of the traineivorlz which serves as a guide tor said rod, the latter is surrounded by a spring 7fifvhen the Wedge is pulled out as in Fig. 7, troni between the hub e0" and the `washer, tie spring 3G causes the stop to pass under t-he nut or projection i0 olf the ineasuri leg G3 carried by the teed lever llt, this happening when the feed lever is at the ei;- tent ot its nioveinent derived troni its continuously moving actuator, after, however, the operator has released the manually coin trolled rod preparatoryto suspending` the Wire feeding ineclianisin, it being supposed that it is desired to reinove the ivorli and apply new Work to the horn. YYhenever the Wedge is pushed automatically into the space between the hub and Washer through the automatic nioi'enient ot the controlling lever, as will be described, the stop :'35 will be Withdrawn troni under the nut or projection 40, thus instantly placing the feed lever under the control of the rod 100 head 4:5 ot saherical l controlled by the spring bo; lever i A. ne proper distance t insure that the stroke ot the Wire feeding in inisin shall be ot just the proper le "i required for the production ot a rastening ot the length necessary to iully netrate the stock then on the horn. t is tnne the measuring rod connected with horn and contacting with the lower end ig leg serves to caliper the ine the length ot stroke or the Wire eeding inechanisin in the production of the next fastening to be thrust into the ivorl.

Tilhen the Wedge 25 is in its inoperative position, Fig. T, and the stop 35 is in position to suspend the action of the Wire feedinechanisin, the lower end or" hub Q2 contacts with the hub 56, as in Figs. l Lnd and at other tiines it Will be litted tron Contact therewitl as Will be described.

rlhe Wedge constitutes what l shall at ti when in one position enabling the Wire feeding inechanisin to be start d automatically at exactly the proper tinie with relation to the cani tace ot' the continuously nioving actuator to insure the starting of the Wire Jieeding niechanisin at exactly the instant necessz -y to teed the Wire to cause the first fastening to be inade to penetrate the stoclr then resting on the horn, and villen in its other position permitting the spring 3S surrounding said rod 34- to immediately push the stop under the nut or projection 40, it being riiderstood that said nut or projection has been raised by tlicontinuously nioving actuator in actuating said feed lever and the vvire feeding niechanisrn.

rl`he tree end ot the arni 29%, see Fig. el,

-tended troni the hub 22 has a hole that receives loosely a rod 25, connected, see wFig. G, at 2T ivith an arin extended troni a bloc-l: having a heel 29, see 8, seated in or joined to a lever C connnon to said first mentioned patent, said lever actuating the connected linl; C5 and inoving the cutter holders, coininini to said patent to sever the ivire at the surface ot the stock after the point the wire has been passed through he stock.

The rod has a collar 54e, see Figs. l and 9, and below said collar said rod is provided With a spring 55, which bears on said arin the inoveinentot said arni acting through said springI to put said heel Q9 in its operative position, see dotted lines Fig. 8, so as to be struck by the toes C, C2, of the continuously moving cutter actuator B13, but When said heel Q9 is not'held upwardly by said spring in its operative position then the Weight of the rod 26 connected with the arrn 2S carrying said heel turns said heel into lll its full line position, Fig. (i, so that the action of the Wire cutting' mechanism is at that time suspended. The arm 2S, having the heel Q9, the rod 26, and hub 22 having the arm 22", constitute one available form of connection for suspending the operation ot' the wii'e ciitting'mechanism when the wire feeding I mechanism `is inoperative, but this invention is not limited to 'the means i'el'iresented, as instead I may use any equivalent means adapted to be actuated by a controlling or starting lever undei' the control of a inaniially controlled device to effect,- the purpose contemplated.

,he Wire feeding mechanism and wire cutting mechanism can be made operative only after the movement otl the controlling lever c in a direction to withdraw the stop from under the nut or projection 40.

The acting end of the locking bar d20, see Figs. 3, l and 12, is beveled at its top edge that it may more readily enter the space be tween the4 extension (lts of the carrier, and the bar sustaining surface or shoulder (Z13 of the .lock frame .D20 preparatory to locking the horn and suspending the opei'ation of the wire cutting` and wire it'eeding mechanisms, said locking bai' when withdrawn from between said extension and said shoulder by the autoinatic movement of said cont-rolling .lever due to the action of its compressed spring 47X, releasing the horn that it may rise under the action of the spring B" and clamp the stock. The spring Lt7* contained in the turret 4t2 connected with the levei' c is adapted to be acted upon by the upper end of the controlling rod 43 as the latter is raised by the treadleidal, such movement ot' the rod compressing` said spring and storing up its energy ltor futiii'e use in starting auto inatically the controlling levi' et" at just the proper time to insure the starting of the i wii'e feeding mechanism. This spring is compressed only when the wii'e feeding uiechanisin is inoperative and at rest and while the extension c. of the carrier rests upon the locking bar (ZBO, the hoi'n being then in its lowered position for the removal of woi'lr.` the usual spring B" surrounding j the horn extension B2 being' effective in holding said block or extension seated on said locking bar.

Vhen the operator depresses the ot' the manually controlled lever starting into operation the preparatory to wire feeding' and wire cutting' mechanisms l from its position Fig'.

front end or ti'eadle the block a8 is raised u l, sufficiently to enable the locking device (it) under the control ot' sa'id spring G2 to be inij inediately moved to occupy a position under said block, thus holding' the rod t3 in a position to hold said springl 47X compressed until suoli later time as its force is to be exerted through said controlling lever to position, Fig. 8, and dotted line I move the wedge 25 in a direction to withdraw the block 3f from under the nut 40, this being done automatically just prior to the time that the wii'e feeding mechanism is to be started to engage the wire and feed the saine for the production of a tii'st tastening. The block 35 is withdi'awii from below the nut oi' projection 40, and immediately the lower end of the nieasiii'ing leg G3. contacts with the measuring i'od G which is moved vertically in unison with the horn, the meeting' of said leg with said rod calipei'ing the stock. This is done prior to the contact of the feed lever with the cani D, and the stock having been calipered, the fam thereafter in its movement meets at just the proper point ot' its inclined face the i'ollei' of the feed level', and starts said lever that it ma 1 the feeding' of the wire for just the proper length to insure penetrate the stock to the tip of the horn. As herein provided for, this movement of thc stop 35 to release the nut -lO of the measuring leg and let the wire feeding' mechan` .ism start can take place only at exactly the right time in the rotation of the cam D17 to enable said roller or other stud to contact iinei'i'ingly with exactly that part of the face of Isaid cani which is required to ett'ect the feeding of the wire 't'or a length to enable .it to be forced into the stock far enough to penetrate thc stock of the thickness calipei'ed and cause the wire to substaiitially i'eacli the tip of the horn so that the first fastening formed in starting the machine is not shorter than required but is of just the proper' length, and in this way it is possible to start the machine in operation a't'tei' suspending the wire feeding' and insure the formation ot a ilastening of the propei' length, and the means for effecting this starting of the wirefeeding' mechanism forms an important feature ot' this invention. The nut B2 of the i'od B2: at cach upward stroke of said i'od contacts with the stii'i'up B2, and even when said stirrup is held up by the i'od or locking bai' d2, the carrie' and its extension du is lifted sutticiently above the shoulder (Z13 to i'clease the locking bar so that the level' c may at such instant be moved provided the spring` dei* has been compressed as stated, and the manually 'onti'olled means is held b v the locking device (3() in a position to maintain the spring el-TX compressed, the starting of said controlling lever 021 by the powei' stored up iii the spring immediately restoringl to operation the feed lever and the wire feeding mechanism, and the wire cut-- ting mechanism. The opei'atioii of the wire feeding and wire cutting mechanisms will not be stopped until the operator removes his foot from the treadle controlling the manually controlled means.

lhenever the locking bai' d20 occupies a the locking bar,

position between the extension Z13 carrier and the shoulder Z13 ot the plate of the lock frame, then as the rod descends the spring B31, as soon as the eX- tension meets said locking bar, is compressed, but the lever BD and the rod BL"l continue to move, the nut on the rod retiring from contact with the lower end of the sleeve B23 ot the stirrup B, and said locking bar by arresting the descent of the carrier causes it to be held in substantially its most elevated position with its pawl or engaging device d in engagement with the rack or bar d, thus holding the horn in its lowered position, and during the time that said locking bar is so interposed between the extension el and the shoulder d, the spring B4, which acts normally to elevate the horn, exerts a pressure to clamp said locking bar d20 lirmly and retain the lever 021 in its inoperative posit-ion, said clamping action being maintained throughout most ot the cycle ot operation of the main shaft of the machine, said clamping being, however, intermittingly released by the throw points 120 or" the cam groove 121, said throw points lifting the'lever B9 intermittingly tor a uticient distance to cause the nut or shoulder BW to meet the lower end ot the sleeve B23 or the stirrup and the carrier ci?, and move said extension (1S to relieve the locking bar as stated from the clamping pressure exerted through the spring B4, so that it' the controlling lever 021 is at that time held by the operator, he being desirous to start the wire-feeding mechanism into operation, the compressed spring Llx may automatically expand, move the cont-rolling lever and withdraw the locking bar from below the said extension, and such movement of said controlling lever will immediately move the releasing means for starting the wire-feeding mechanism and enable it to be started into operation, and at the same time the wire-cutting mechanism will be put into operation.

it will be und rstood that the compression of the spring Bt, when the horn is locked in its depressed position, puts that spring in a condition to normally act, wnen released, to pull dow wardly the rod d having the connected rack or bar (Z5.

Tilhenever the pawl or engaging device ot the carrier, cooperating with said rack or bar is disengaged therefrom, as it may be by any usual stop (VO, the horn may be moved upwardly by the spring B4, but it the descent ot the carrier Z2 is arrested by then the pawl or engaging device is notthrown out of engagement with the rod or bar Z5 and the horn is kept depressed with the spring. B* under compression, and said spring becomes effective to insure the firm clamping of said extension for the greater part of each the locking-bar by l of the l cycle of operation of l l l l the machine. `Whenever the locking bar is withdrawn, as herein provided for, theV stirrup and carrier (Z2 descend, and the full stroke ot' the rod B22 may be eiiective in raising the carrier, the spring B1 being effective to lower the carrier to the tull extent ot' its stroke. The employment ot the spring B31, which may be compressed, as described, enables the carrier d2 to remain at rest with its pawl in engagement with one or the other of the ratchet teeth oi' the rack or bar d5, that depending upon the thickness of the stock between the tip of the horn and the nose when the wire feeding mechanism is thrown out ot operation. rthe locking bar d20 is interposed between the extension 11S and the shoulder f 13 only after the operator has removed his toot trom the treadle sie, the releasing ot sait treadle enabling the depressing spring to assume the control of the controlling lever and move it in a direction to put said locking bar under said` eXtension at a time when the carrier is in its elevated position and the horn occupies its lowest position tor feeding, said position varying according to the thickness of the stock then on the horn.

T`fifhen the horn depressing mechanism is held, described, in the position sho 1n in ig. 1, the spring B" is also compressed and yells normally down on the rack or bar d then coupled operatively with the carrier by the pawl or engaging device d, and said the carrier 61" L ig also by pulling` down maintains the extension (Z13 firmly against the locking bar cl2 and maintains the controlling lever cL1 in its inoperative position. Figs. l, 6 and 9 show the lock and its mechanism with the parts of the machine in the position they will occupy when the wirefeeding mechanism is rest, the horn down and the action of the wire-cutting mechanism suspended, the locking bar at such time occupying a position under the extension (lis, and it will be supposed that the wire carrying spindle e. is being rotated rapidly oy the belt on its pulley A, and that the shafts B1* and (ITX are being rotated with and from the said spindle, and also that the cams D and l l are being rotated and that the heel a9, one ot the operative instrumentalities of the wire cutting mechanisn. stands in its dotted line position, (i, and that the stop 35 under the nut fr@ holds the wire-feeding mechanism in its inoperative position.

rilie Voperator having applied a shoe to the horn then in its lowered position, puts his jroot on the mann-ally operated treadle or device ai, depressing the saine and elevatingl the manually controlled device or rod thus moving the block t8 thereon, see Fig. 1., away from the inner end ot the locking device 60, which serves the purpose of locking the rod and treadle in the position in which-it is put by the operator 'preparatory to starting' the wire-feeding' mechanisni, said locking device under the action ot its spring' 62 immediately passing' under said block 4S, as shown in Fig'. 3, where it stands always for a period of time sutl'icient to insert at least one fastening'.

The elevation of the rod 43 con'ipresses the spring' 47", thus storing' up energy in said spring' so that on the next ascent ot the rod 22 and its nut B32, following the compression of said spring' 47X by the movement ot the treadle 44k and rod 43, the said nut strikes the sleeve B23 and lit'ts the stirrnp B24, sufficiently to litt and remove the extension ils from the locking' bar (F0. The stored up energy in the spring' 4T* now acts to turn quickly the controlling' lever c21 in the direction of the arrow thereon, see Fig'. 3, until the locking' har meets the stud 22X to remove the locking' bar from beneath the extension (21S that the carrier (Z2 of the horn depressing mechanism may thereafter be reciprocated -for its full stroke and enable the pawl or engaging' device d to engage the teeth of the rack or bar di and depress the horn for feeding', said horn being' depressed itor the same distance trom the underside ot the work ot whatever thickness in order to enable the feed to take place.

As the controlling lever c automatically actuated, as stated, by the spring' Il, said lever elevates the rod Q-t, causing' its wedge-shaped end 25, cooperating' with the inclined hub 40X, to immediately remove the stop 35 from its contact with the nut 40, thus releasing' the wire-feeding' mechanism and letting it assume its operative position, this being' donc at such time with relation to the timing' of the cam D that the roller or other stud D1G of the lever DH oft the wireteeding' mechanism shall contact with the tace of said rapidly rotating' cam or continuously moving' actuator D1T at exactly the proper point to insure the feeding' of the wire for a length su'tlicient to meet the tip et the horn in the position it then occupies in contact with the stock, so that the first fastening inserted in the work a'tter starting' the machine will always be ot' the .'tull and proper leng'th. At this time the arm 22X of the hub 2'? rises and carries with it the spring 55, so that said spring acting' on the collar 54 ot' the rod Q6 turns the heel 29 from its dotted line position, Fig'. t3, and full line position Fig'. S. into the dotted line position Fig'. S, the said heel in such position meeting' a stop surface 70 of the lever C, thus putting' said heel into its working' position. The spring' by its compression, keeps said heel firmly in position so that it is met by the toes (l2, ot' the cam B13 in the rotation of said cam, which results in moving the lever C su'tliciently to operate l i l l i l the wire-cutting mechanism and sever the wire close to the stock al'ter the same has been inserted `far enough into the stock to meet the tip ot the horn, this operation being' continued as long' as the operator desires to insert it'astening'sin succession, and during' this time the spring 55 will yield somewhat under theaetion ol. said toes upon the heel 29: and so also the spring 112 will yield, it ett'ecting after eaeh depression of the lever C the elevation ot' said lever so as to keep it in such position that the heel may be acted upon by the toes so long' as the opera tor desires to insert fastening's. The linger (ZN, connected with the carrier (Z2, is depressed while inserting' each fastening', and at each descent of said linger its cam tace 20 meets the roller (il ot the locking' device GO and withdraws the same. from underneath the block 48 connected with the rod 43, so that it the operator has previously taken his -toot trom the treadle l-ft, he being' desirous ot' stopping the operation ot the wirefeeding' and other mechanisms, thel block Ll-S oi the rod li3 may descend behind the end of the locking' device, letting' the head end of said rod 453, under the action o't a depressing' spring' 5l. meet the controlling' lever c and turn the same in a direction opposite the a1'- row thereon to thus cause the locking' bar to ag'ain come into its position under the eX- tcnsion d when the stirrup and carrier are in their elevated positions. lVhen the rod 43 is permitted to descend the end ot the locking' bar may be in contact with thel vcrtical side of the extension d, but said locking' bar cannot get under said block until it is elevated, so while the controlling' lever is n'iaintained in its position. Fig'. et, the end of arm 22X of the split hub will also be kept in its elevated position, and the spring' in such condition ot the parts will yield to enable the toes C and (l2 to meet the heel QS) and depress the rod 20.

Fig'. 3 shows the controller bar in the position it will occupy as soon as the spring' 47X has been compressed to become the a utollO matic mover for the controlling' or starting' lever ci, the locking' device being' represented as engaging' the block 48, but Fig'. 4 shows the controlling' or starting' lever 021 in the position in which it is put by the expansion ot' the spring' 47X, the locking` bar beingl in its inoperative position and the wire-feeding' mechanism and wire-cutting' mechanism being' supposed to be in their operative positions. rihe lever c will remain in the position Fig'. 4, and the insertion ot tastening's will be continued as long' as the operator retains his toot on thc treadle -t-l and keeps the rod' 43 elevated, but as soon as he removes his toot trom the treadle` this being' preparatory to putting' the wire-feedingl and wire-cutting' mechanisms in their inoperative positions and the putting' ot' the locking' bar in position to arrest the descent of the carrier (Z2, the finger or Wedge d1 connected with the carrier at the descent thereof following the release ot the treadle by the operator, meets the roller or other stud 61 and withdraws the locking device GO so that the depressing spring 51 is free to actand move the controlling lever ('21 and with it move the lockingbar toward the extension dlg, as in Figs. 1 and 3, and in this movement ot the controlling lever the vire-feeding mechanism will be locked in its inoperative position, and the heel 29 operative in the Wirecutting mechanism ivill be turned into its inoperative position, as shown by dotted lines in Fig. 6, and the reciprocations of the stirrnp and its carrier (Z2 Will be stopped, notwithstanding the rod B22 continues to operate through the sleeve of said stirrup, and the horn Will be stopped in its'lo'vvered position, as stated.

lt Will be seen that the operator may compress the spring 47X for moving` the controlling lever 021 at any time in the cycle of movements ot the continuously moving actuators for the groups or' devices hereinbefore named, but sait devices Will not be put under the control orp their actuators at the time ot such manual operation but at the proper time in the cycle of operations of the actuators to insure the proper action of the wire feeding and Wire-cutting mechanism and the release of the horn.

The operator having compressed the spring, as herein represented, by a manually controlled device, a rod moved by a lever, retains his toot upon the treadle Mtor as long a period as he desires that the machine shall continue to operate and insert astenings, but when the machine is to be stopped the operator may remove his toot from the treadle, referred to, at any point in the cycle or' operations of the continuously moving actuators and thus release the controlling lever and put it under the control ot another spring which at an exact time in the cycle of operations of the continuously moving actuators Tvill move said lever so that it, through su aole connections operated by it, Will arrest the further movement or the vire-feeding mechanism putting it in its inoperative position and stop the mov Anent of the Wire-cutting mechanism and lock the horn in lowered position that the stock may be readily removed therefrom.

rllhe drawing, Fig. la, shows an auxiliary feeding` or gripping roller 72, tice Will be toothed at its periphery to engage the threads of the Wire. rlhere is a roll of this kind for each gripper' 79, said rolls being contained in suitable pockets in said grippers and by their engagement with the threads of the Wire they act as auxiliary feeding devices augmenting the etliciency ot the teeth ot' the grippers, the roller teeth and which in pracgripper teeth cooperating together to 'feed the Wire in a superior manner. These rollers act cul)T when the sleeve F and grip carrier descend, they rolling over the Wire When the said sleeve and gripper carrier rises.

Having descrihed my invention, what l claim an(V desire to secure by Letters Patent is l. ln machine tor inserting l'iastenings, a horn, hor' depressing mechanism, a controlling lever, a controlling` rod cooperating therevvr means to move said rod, and a locking bar actuated by said lever to engage said horn depressing mechanism and maintain the horn in its lowered position.

L). ln a machine tor inserting tastenings, vvire-i'ieeding echanism, a controlling lever operative in 'arting said Wire-feeding mechanism, a controlling rod cooperating there- 'with and provided 'with a block; and means whereby said rod may be lifted; combined with a locking device to cooperate with said block and loci; the controlling rod in position to insure the feeding of the wire.

3. ln a machine for inserting instellinge, Wire-feeding mechanisn'i, a controlling lever' containing a spring, means to lock said lever in its inoperative position, a manually controlled device acting to compress said spring, and a loci-:ing device to engage said manually controlled device and retain the spring in its con'ipreisel conditionready to operate said lever and start the Wire-leerling mechanism when the locking means for said lever is released.

in a machine for a controlling lever, a manually controlled rod to move said lever, an arm connected 'with leve a cutter' actuating lever, and a movable ,ie mounted thereon, combined with rod operatively connected with said heel and extended loosely through said arm, and a spring surrounding said rod and sus- ,f1 .i 1n- V1.1. t ramen. it o-ie con ny sara ann.

machine tor inserting tastenings, mechanism inclndinga feed measuring derice provided "on, said ed lever being in- L'tneivire-t'eeding mech,- anism, an arting rod having a stop coasting "ita said projection to hold said Jreed lever inoperative position, com- 1nined vvith a controlling lever, connections between said controlling lever and said leed starting rod, a lool; for locking said lever in its inoperative positionnneans Jfor automatically releasing said loclT and manually-controlled-means to insure the automatic movement oisaid controlling lever when released, that lne feed starting rod may Withdraw d stop Afrom projection.

6. .ln a machine of the class described, a slide rod having a feed stop, a spring to move said slide rod in one direction, and a teed lever having a measuring device proinserting tastenings,

ytrolling lever,

vided With a projection, combined with a rod having a Wedge, and means to actuate said rod to move the rod having the t'eed stop to Withdraw said stop from under said projection when it is desired that the tecd lever shall be started.

7. In a machine ot the class described, a horn, a lever connected therewith. ay rod prt vided at one end With a bar, a carrier having a device to engage said bar to move the same, a stirrup having a sleeve and attached to said carrier, .f lever, and means to actuatie the same constantly during the operation of the machine, combined with a rod connected with said lever and extended through the sleeve of said stirru p, said rod having a projection to engage said sleeve and lift said carrier, and a spring surrounding said rod and bearing on said sleeve at each descent oit' said rod.

S. 1n a machine of the class described, a horn, a lever connected therewith, a rod having a bar, acarrier having a stirrup and a connected device to engage and move said bar, a lever, and means to actuate said lever constantly during the operation of the machine, combined with a rod and spring for yielding-ly connecting said lever with said stirrup, and means to arrest said carrier in its elevated position.

y9. 1n a machine for insertinol Wire, a cona connected locking bar, Wirefeeding mechanism, a feed starting rod operatively connected with said controllingl lever, horn, a connected bar, a. carrier having a device to engage and move said bar, means to clamp said locking bar, a stirrup having a sleeve and connected with said carrier, a lever,.means to actuate said lever constantly, and a rod connected With said lever and extended loosely through said sleeve, combined with a spring carried by said rod and acting normally on said stirrup to depress said carrier, a projection on said rod adapted to act upon said stirrup to lift said carrier at each ascent of said rod sufficiently to release said locking bar, and means for moving said controlling lever automatically When the action oi the Wiret'eeding mechanism is to be started.

10. In a machine tor inserting` Wire, wireteeding mechanism, Wire-cutting mechanism, device to determine when said mechanisms may be actuated, a manually cont-rolled rod having a block, a locking device to engage said block and keep said rod locked in its elevated position, a controllingl lever aetuated by said rod, and means intermediate said lever and the devices to determine when said Wire-feeding and Wirecntting mechanisms are to be operated whereby when said lever is moved the Wire-feeding mechanism. and the Wire-cutting mechanism will r be started.

l1. In a machine of the class described, a

l l l horn, a lever connected therewith, a rod having a bar, a carrier having a device to engage and lift said bar, a lever, and means to actuate said lever constant-ly during the operation ot' the machine, combined Wit-h a spring and a rod loosely connecting' said lever with said carrier, a controlling lever having a connected locking bar to arrest said carrier in its elevated position, a manually controlled device having a block, a locking de vice and a spring to move it to engage said block, and a cam-shaped linger movable with said carrier and adapted to withdraw said locking device from its engagement with said block.

l2. In a machine of the class described, a horn, a horn-depressing mechanism, a manually-controlled rod, devices intermediate said rod and said horn-depressing mechanism, wire-feeding mechanism, devices intermediate said rod and said Wire-feeding mechanism, and means for elevating said rod to insure the starting oi the Wire-feeding mechanism, combined with a block on said rod, a locking device to engage said block and prevent the descent of said rod after the operator releases said rod, and a device connected with said horn-depressing mechanism and actuating said locking device to release said rod at a predetermined time to permit the horn to descend and effect the stopping of the Wire-:feeding mechanism.

13. A horn, a constantly actuated lever, connections between said lever and horn having provision to slide one on the other, combined with a locking eratc it at the desired time to place said bar between the connections of said lever and horn to arrest the tip of the horn in its lowered position and yet enable the lever referred to to be actuated.

14. In a machine for inserting wire, a horn, means to depress the same, including a vertically movable carrier having locking bar clamping means and a constantly moving rod, Wire feeding mechanism, Wire cutting mechanism, a manually controlled rod having a block, a locking device to engage said block and keep said rod locked in its elevated position, a controlling lever actuated by said manually controlled rod and having a connected locking bar, and devices connected with and actuated by said controlling lever in its movement in one direction to enable the wire feeding mechanism and the wire cutting mechanism to be started While said rod is in its elevated position, means to Withdraw said locking device to permit the descent oi said manually controlled rod that said controlling lever may move in the opposite direction and cause its bar to coact with the clamping device of said carrier and retain said lever in its inoperative position to ett'ect the suspension of the operation of theWire feeding and Wire cutting mechanisms said locking-bar arresting the horn in its lowered position in order that the Work may be removed.

l5. in a machine ot the class described, a controlling lever having a seat and containing a spring, a locking bar att-ached to said lever, a carrier with which it cooperates, a headed rod adapted to act on said spring to compress the same preparatory to turning said controlling lever to Withdraw said loclring bar trom said carrier, the head or said rod When the latter is depressed turning the controlling lever in a direction to torce the locking bar into position to arrest the movement of said carrier.

1G. ln a machine of the class described, a horn or stock support, horn depressing mechanism having a locking-bar clamping portion, a controlling lever, a connected locking-bar, a support for said locking-bar, and means to turn said lever and torce said locking -bar under said clamping portion that said bar may be held betvveen said clamping portion and supportto lock the horn dovvn Whenever the latter is to be held depressed for the removal of the Work therefrom.

17. ln a machine for inserting astenings formed from Wire, a continuously moving actuator, Wire-cutting mechanism including a lover having movably mounted upon it a block provided with a heel, said block having a connected rod which normally puts said heel in its inoperative position with relation to its continuously movino` actuator, a spring surrounding` said rod, a controlling lever, means to automatically move said controlling lever at a predetermined time to turn said heel into its operative position that the Wire-cutting mechanism may be started into operation.

18. Tire-feeding mechanism, a continuously moving actuator, a stop to hold said Wire-'feeding mechanism in its inoperative position, an automatically operated controlling lever, and means comprising a vvedge moved by said lever to Withdraw said stop and release the Wir -eeding mechanism and put it under the control ot its actuator to feed the Wire. Y

19. ln a machine for inserting fastenings, a horn, means operating continuousl i to loiver the horn at intervals, a controlling lever having al connected locking bar, a spring carried by said controlling lever, a manually-controlled device for compressing said spring, said device having a block and a second spring for moving said device in an opposite'direction that it may move said controlling lever automatically at an exact predetermined time in the cycle ot operation of the machine to Withdraw said bar aiid release the horn that it may rise, meet and caliper the stock.

20. Wire feeding mechanism,

Wire cutting '1: u ire-feeding n'iechanism, ot said ivire u .iv in g a stop to suspend the operation feeding mechanism, continuactuators for said mechanisms, movable with relation to said Wire lng mechanism, a controlling lever, connections between said lever and said stop, and hetiveen i lever and said heel, means to lock and restrain the movement of said lever While the Vivi 'e-teeding mechanism and Wire-cutting mechanism are to occupy their inoperative position, and means toi turning said lever automatically When the means tor locking the same has been moved to release said lever that the latter 'may through connections insure the starting of said and Wire-cutting mechanisms.

ing mechanism including a Ll. ilire fee movable heel, continuously operating actuators tor said vviie feeding mechanism and said Wire cutting mechanism, a rod having a stop to hold said Wire feeding mechanism in its inoperative position, a controlling lever, and a manually controlled device to insure the movement of said lever When the ivire teedino' mechanism and the Wire cutting mecham in are to be put into operation, and means intermediate said controlling leveiI and Wire-feeding mechanism and Wire-cutting mechanism and moved by said lever to cau:-'- the ivire feeding mechanism to be put Laderr the control ot its actuator and also to maintain the heel ot the Wire cutting mechanism yieldingly in its operative relation to its actuator.

It horn, a ratchet bar operatively connected 'herewithl a carrier to engage said ratchet bar when the horn is to he depressed,

a sprino acting normally ,to elevate said horn vv en said ratchet bar is disengaged from said carrier, means to raise and lower said carrier, a locking-bar and means to interpose said bar betvveen said carrier and a lifted part oi the machine when said carrier lifted to thereby loolthe horn in its loivered position.

ln a machine ot the class described, a carrier, a horn, a connected ratchet har, a continuously moving lever, a rod carried thereby and engaging loosely said carrier, a

projection and a spring car 'ied by said rod carrier, said rod littand coacting with said said rod and spring ing said carrier, and

deps-es .0' the same.

2liin a machine tor inserting tastenings,

a carrier provided ivith an extension, means acting positively to litt said carrier and yieldingly to depress said carrier, a horn having a connected bar, a spring acting normally to elevate said horn, means to effect the tirm engagement otl said carrier and bar when said horn is to be depressed, said means sliding freely over said bar when said horn is acting to clamp the stock, combined with a locking-bar, and means to inleer. vvire cutting mechanism presenting a v terpose the same in the path of the extension of said carrier thereby to retain the horn in a lowered position for the removal or application of the stock.

25. In a. machine it'or insertingl asteniugs, a horn, a carrier unobstructed in its movements in lowering the horn duringl the operation ot' inserting,` fastening's, a continuously moving; actuator, a lever operated. continuously by said actuator, a shouldered rod connected with said lever to litt said carrier, a spring` interposed between said lever and said carrier to depress the latter, a locking` bar to arrest the descent ot' said carrier, and means to interpose said locking bar in the path of descent of said carrier when the horn is to be retained in its depressed position, the said spring at such time yielding.

26. In a machine tor inserting metallic fastenings, a horn, a continuously moving actuator, a horn depressing lever moved continuously by said actuator, a rack or bar operatively joined with the horn, a carrier havingl an engaging device to engage said rack or bar on the upstrole of the carrier to depress the horn, and a loose connection between the continuously operated lever and the carrier whereby the descent of the carrier may be arrested without arresting` the movement of the continuously moving actuator and the lever operated continuously thereby.

-T. 1n a machine for inserting' wire, wirefeeding mechanism, wire-cutting' mechanism, a horn to sustain the stocl, means for raising` and lowering said horn, a manuallycontrolled rod haif'ing an attached block, a locking,` device to engage said block to lteep said rod locked in its elevated position, a spring to depress said rod when said locking device is disengaged from said block, a controlling lever` a connected locking` bar, and a spring in said controlling lever, combined with devices connecting one end ot said controlling lever with said wire-feeding and wire-cutting mechanisms, whereby when said lever is moved in one direction by the spring;` within the same, the wire-feeding mechanism and the wire-cutting mechanism may be started and the horn be unlocked, and means for moving` said lockingl device to ett'ect the release of said mannally-controlled rod that said controllingl lever may be turned by the spring arranged to depress said rod, to thereby stop the operation of the wire-cutting mechanism and leave the horn in its depressed position.

28. In a machine for insertingl wire, al horn, wire feedingv mechanism, a controlling lever having a spring adapted to be compressed to move said lever automatically at a later period, a connected locking' bar, a carrier instrumental in depressing;` the horn, and adapted toclamp said locking bar and maintain said controlling lever in its inoperative position while the wire feeding mechanism is in its inoperative position and the horn is depressed for the removal of work, a manually controlled rod to compress said spring, a block carried by said rod, a locking device to engage said block and maintain said spring compressed while said locking bar is clamped, and means to litt said carrier to release said locking bar that said compressed spring may automatically turn said controllingl lever and start the wire feedingl mechanism, and means actuated by said lever to start the wire-cutting,r mechanism to sever the wire.

Q9. ln a machine for insertinl fastenings, a horn, wire feedingI mechanism, a controlling lever, controlling, mechanism between said lever and said wire feeding mechanism, a locking bar operated by said lever, a rod under the control of the operator, a spring to move said rod and actuate said lever, mechanism :tor lowering the horn, and m ams to put said locking bar in position to maintain the horn in its lowered position and suspend the operation ot the wire feeding mechanism. 30. A work support, loweringl means therefor including a carrier and a yielding' actuatoi' operatively joined therewith to ettect the lowering ot' the work support to allow the work to be fed, a continuously operating,` cam for movingl said yielding actuator, and means tor lockingl the carrier ot the lowering means to maintain the work support in lowered position for the removal or application ot stock while said actuator continues in operation.

31. ln a machine for inserting fastenings, a manually controlled rod, a horn, a spring to elevate the horn, wire cuttingmechanism, and wire teedinl mechanism, combined with a controlling lever containingl a spring, a locking bar connected therewith, horn depressingl mechanism having means to engage said bar and lock the controllingl lever in its inoperative position while the operation of the wire feeding' and wire cuttingl mechanisms is suspended and while the horn is depressed, and means to actnate said horn depressing' mechanism to release said locking bar that the spring coacting with said horn may elevate the latter to clamp the stock, and that the wire 't'eeding and wire cuttingI mechanisms may be placed automatically under the control ot their actuators.

ln a machine for inserting tastenings, a horn, horn depressing mechanism, wire feeding;l mechanism, an actuator 'tor said wire feeding mechanism, means lor stopping the operation ot said wire t'eeding mechanism whilc its actuator continues in operation and means released by a movement ot' the horn-depressing mechanism 'tor restoro u sly ing said wirefeeding actuator.

wor r support, a device to effect the lowering of the worlr support for the removal or application et work, an actuator, mechanism constantly operated by said actuator to operate said device, and means to stop the movement ot said lowering device to leave the work in its lowered position, while said mechanism continues in operation.

Si. Wire feeding mechanism, a continumoving actuator, a stop, a spring to move said stop when permitted into position to maintain said wire feeding mechanism in its inoperative position, a horn, a measuring rod connected therewith and coacting with said wire mechanism to position the same according to variations in 'thickness of the. steelt, and an automatically operated device to withdraw said stop to release said wire feeding mechanism to permit the stock to be calipered before said wire feeding mechanism meets its actuator to be started to feed the wire.

35. ln a machine of the class described, a carrier, a horn, a connected ratchet bar, a continuously moving lever, a rod carried thereby and engaging loosely said carrier, a projection and a spring` carried by said rod and coacting with said carrier, said rod lifting said carrier, and said rod and spring depressing the same, and means to lock said carrier in its elevated position to retain the horn depressed for the removal oit' stock.

36. in a machine tor inserting tastenings, a horn, a rack connected therewith, a carrier having a connected extension, an engaging device mounted on said carrier to engage said rack, means to raise said carrier to depress the horn, a controlling lever, a locking bar, and means to turn said lever to force said bar toward said carrier when in its elevated position that said bar may be thrust under said extension and loch the carrier in its elevated position with the horn depressed for the removal of the work.

37. ln a machine of the class described, a controlling` lever containing a spring, a connected locking bar, means to temporarily clamp said locking bar to restrain the movement ot' said controlling` lever, a manually controlled device to compress said spring while said locking baris held clamped, a locking device to retain said manually controlled device in position to hold said spring compressed that it may act to turn said controlling lever when said clamp releases the locking bar.

3S. ln a machine oi*l the class described, wire feeding mechanism, a controlling lever, means connected therewith to suspend the operation ot' the wire feeding mechanism when said controlling lever occupies one position, and to permit said wire feeding mechanism to be started when said controlmechanism to its ling lever occupies its other position, a carrier, means it'or actuating the same and a locking ,lar connected with said cont-rolling lever and adapted to be locked by the carrier when in its elevated position to prevent the starting of the wire 'feeding mechanism except at just the proper moment, and locked when the carrier is down, to prevent the movement or said lever in a direction to suspend the operation of the wire feeding mechanism.

39. 1n a machine ot thel class described, a controlling lever containing a spring, a connected locking bar, means to temporarily clamp said locking bar to restrain the movenient of said controlling lever, a manually controlled device to compress said spring while said locking bar is held clamped, a locking device to retain said manually controlled device in position to hold said spring compressed that it may act to turn said controlling lever when said clamp releases the locking bar, and a stop to limit the extent oi' movement of said locking bar and consequently of said controlling` lever under the action oie its spring.

-l0. In a machine for inserting astenings, a horn, horn depressing mechanism includshoulder, a controlling lever having a spring and a connected locking-har adapted to be held tixedly by the horn-depressing mec-hanism when the horn occupies its depressed position, a ieed lever forming part of wirefeeding mechanism, it occupying its inoperative position while the horn is depressec and said bar is locked, manually-eontrolled means to store up energy in the spring ot said controlling lever that said lever may be moved when the locking-bar is released through the elevation of the horn-depressing mechanism, said movementl of the horn-depressing mechanism in lowering the horrL releasing the locking-bar automatically and allowing said controlling lever to .st-art the wire-feeding mechanism.

41. ln a machine of the class described, a horn or stock support, horn-depressing meehanism having a locking-bar clamping portion, a controlling lever, a connected loching-bar, a support for said locking-bar, means to turn said lever and force said locking-bar under said clamping portion that said bar may be held between said clamp and support to lock the horn down whenever the latter is to be held depressed for the removal of the work therefrom, and a manually-controlled device having a block, and a, locking device to engage said bloclr.

42. ln a. ma hine of the class described, a horn or stock support, horn-depressing mechanism having a locking-bar clamping portion, a. controlling lever, a connected loching-bar, a support for said locking-bar, a spring carried by a manually controlled deing a continuously moving rod having a vice to turn said ingebar under said bar may be I support to lock the horn down whenever the latter' is to be held depressed for the rel moval of the work therefrom, a manually- I r l lever and force said lock- I said clamping portion that! held between said clamp and controlled device having a block, a lockingdevice to engage said block, and means con` nected with said horn-depressing mechanism l to withdraw said locking device when the horn-depressing mechanism is depressed and I the horn correspondingly raised. ,i 43. In a machine of the class described, a l manually-controlled device having a block, a horn, a carrier for depressing saidA horn, a controlling' lever having -a connected bar adapted to engage and lock said carrier in its nearly elevated position with the horn nearly depressed to its full limit, a spring in said controlling lever adapted to be compressed by said manuaily-controlled device while said locking bar is held in its locked l position by said carrier, means for locking said manually-controlled device in position after said spring has been compressed, that said spring may subsequently act and withdraw said locking bar at the final upward movement of said carrier, to thereby unlock ,l the horn that it may rise to caliper the f stock and start the wire-feeding and wirecutting mechanisms, and means connected I with said carrier to unlock, in the descent ol the carrier, said manually-controlled device that it may, after said wire-feeding mechanism and said wire-cutting mechanism have been operated, move said controlling lever at the next upward movement of said carrier io again place its locking bar in position to maintain the horn depressed and render the wire-feeding and wire-cutting mechanisms again inoperative.

lill. In a. machine of the class described, a rod having a stop and instrumental in starting into operation wire-feeding mechanism, an arm having a heel and instrumental in causing' wire-cutting mechanism to be operated, combined with a controlling lever, a rod connected with said lever, and sustaining' a wedge for moving the rod having said stop into its inoperative position, an arm carried by the rod having the wedge, and means moved by said arm to control the position oi said arm having said heel, as and i'or the purpose described.

In testimony whereof, I have signed my nameto this specification, in the presence of two subscribing witnesses.

Witnesses GEO. W. GREGORY, EMMA J. BENNETT. 

